Applications: High capacity for high molecular weight solutes; does not denature proteins. Used for purification and fractionation of peptides and proteins.

Bio-Rex MSZ 501(D) Resin

Type: Mixed bed

8 and 10%

1,000

0–14/0–14

1.5

0.72

H+ + OH-

Functional group: R-SO3- and R-CH2N+(CH3)3

Matrix: Styrene divinylbenzene

Applications: Uniform bead size, which minimizes pressure drops and increases resin capacity; used for desalting water and other nonelectrolytes. The resin contains a dye that changes from blue-green to gold when its exchange capacity is exhausted.

Chelex 100 Resin

Type: Weak cation, chelating

1%

3,500

4–14/0–14

0.4

0.65

Sodium, iron

Functional Group: R-Ch2N(CH2COO-)2

Matrix: Styrene divinylbenzene

Applications: Used for the ultrapurification of buffers and ionic reagents, it will scavenge metal contaminants without altering the concentration of nonmetal ions. Iron form is for glyphosate concentration.

Separation strategy for amphoteric molecules. If the molecule is stable at a pH above its pl, an anion exchange support is used. If the molecule is stable at a pH below its pl, a cation exchange support is used.

Larger volumes and special packaging for industrial applications are available on request.

What is the education discount policy?

For more than 15 years, Bio-Rad has made science education a major priority. To support this effort, the company has implemented a discount policy that allows high school and college teaching laboratories to purchase kits, instruments, reagents, and other equipment at preferred prices.

How do I apply for the education discount?

If you are an educator at the high school or college level, visit our Education Discount Policy page to establish an education account number.